System and method for reconfiguring configuration registers of a

Details System and method for reconfiguring configuration registers of a System and method for reconfiguring configuration registers of a

1997-06-04

1998-09-29

Ray, Gopal C.

395556, 395284, G06F 1300, G06F 1338

Patent

active

058157344

ABSTRACT:
A system is described for facilitating operation of a peripheral bus, such as a PCI bus, at a higher clock frequency. Each of the devices resident on the PCI bus include certain configuration registers, including MIN.sub.-- GNT and MAX.sub.-- LAT, which provide configuration parameters to various system resources. In addition, each of the devices resident on the PCI bus include a status register with a dedicated 66 MHzCAPABLE bit. The dedicated status bit indicates whether the PCI device is capable of operating in a 66 MHz environment. As a result, each device can be polled during system initialization to determine if all of the PCI devices will support 66 MHz operation. If the system determines that the clock frequency will change due to a change in the system configuration (such as PCI devices being added or removed from the PCI bus), the configuration registers of each of the PCI devices can be modified to insure proper operation at the new clock frequency.

REFERENCES:
patent: 4464772 (1984-08-01), Buckley et al.
patent: 5086387 (1992-02-01), Arroyo et al.
patent: 5167024 (1992-11-01), Smith et al.
patent: 5263172 (1993-11-01), Olnowich
patent: 5309568 (1994-05-01), Ghosh et al.
patent: 5315706 (1994-05-01), Thomson et al.
patent: 5327121 (1994-07-01), Antles, II
patent: 5392422 (1995-02-01), Hoel et al.
patent: 5404462 (1995-04-01), Datwyler et al.
patent: 5471587 (1995-11-01), Fernando
patent: 5493684 (1996-02-01), Gephardt et al.
patent: 5511013 (1996-04-01), Tokieda et al.
patent: 5628019 (1997-05-01), O'Brien
patent: 5630148 (1997-05-01), Norris
Bailey, Michael, "PCI Local Bus Breaks Data Bottleneck To Open Up PC Technology," Computer Technology Review, Sep. 12, 1993, No. 11, Los Angeles, CA, US, pp. 15-17.
PCI Local Bus, Chapter 7, 66 MHz PCI Specification, Revision 2.1, pp. 171-184.
European Search Report for Application No. 95305759.3, dated Nov. 16, 1995.

Affiliated with

Also associated with

Rating

System and method for reconfiguring configuration registers of a does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with System and method for reconfiguring configuration registers of a, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and System and method for reconfiguring configuration registers of a will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-696635